I am looking for as much information as I can get on my steyr model 1905 rifle. It has setting trigger, claw scope mounts. Looking for how to determine what caliber it is. I think is 7x57 but want to confirm. In need of the scope rings to work with the claw mounts on the gun. In need of en bloc and or stripper clips. Many markings on the barrel and action but none that I can determine to be the caliber.